consisted of thawed water from high glaciers‚ feeding the two recently largest rivers of the region: the Amu Darya (Located in Eastern Central Asia‚ 2580 km long) and the Syr Darya: (2‚220 km long). It was generally very shallow‚ attaining a maximum depth of c.180 ft (58 m). In the 1950s the Soviet Union decided to cultivate cotton in the region‚ and since the early 1960s the Syr Darya and Amu Darya have been used for large-scale irrigation‚ causing a drop in the flow of freshwater into the sea
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Assignment: Atomic Theory 1. Write the complete symbol and determine the no. of electrons‚ protons and neutrons of the following e- p+ n a.) Oxygen - 8 8 b.) Cesium - 55 55 c.) Argon - 18 18 d.) Uranium - 92 92 e.) Copper - 29 29 2. Calculate the atomic mass of sulfur from its natural isotope. f.) Sulfur-36 g.) Sulfur-32 h.) Sulfur-33 i.) Sulfur-34 3. Complete this table. Symbol of Elements | Atomic Number | Atomic Mass
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Experiment Objectives Determine the % C and % H in an unknown compound. Determine the empirical formula of the unknown compound. Determine the molecular formula of the unknown compound. Carbon-Hydrogen (CH) analysis is performed by burning the unknown sample. As a result of the complete combustion of the compound‚ all of the carbon in the compound is converted to carbon dioxide gas and all of the hydrogen in the compound is converted to water vapor. CxHyA + z O2 (g) → x CO2 (g) +
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THE ESTABLISHMENT OF THE MUGHAL EMPIRE BaBUR The foundation of the empire was laid in 1526 by ahir al-Din Mu?ammad Babur‚ a Chagatai Turk (so called because his ancestral homeland‚ the country north of the Amu Darya [Oxus River] in Central Asia‚ was the heritage of Chagatai‚ the second son of Genghis Khan). Babur was a fifth-generation descendant of Timur on the side of his father and a 14th-generation descendant of Genghis Khan. His idea of conquering India was inspired‚ to begin with‚ by the
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approximately 780 cm/1. The peak was intense due to is polarity but the frequency was very low compared to other molecules. Although the C-Cl bond has a strong peak the frequency is low because of its mass. The mass for only chloride alone is approximately 35 amu which causes the frequency to be low. This further validates how mass and frequency are inversely proportional. Bond order is also related to frequency. The stronger the bond the higher the frequency. This was shown through the bond of hexane‚ hexene
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What You Need To Know for the Chemistry Regents Exam The Test The Chemisty Regents Exam is broken down into three sections: Part A: 35 mulitple choice questions from all units covered over the course of the school year. Part B: Approximately 25 questions‚ with a mix of short answer and multiple choice. Questions focus on the Reference Tables‚ graphing‚ and laboratory experiments. Part C: Approximately 15 short answer questions‚ most broken down into smaller parts. This is often an
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The Effects of Osmosis and Diffusion The experimentation of last week’s lab was in order to test the many effects of diffusion and osmosis amongst four experiments. One such experiment was testing the effects of molecular weight on diffusion in relation to the use of Agar. The methods performed included the use of two acids‚ HCl and acetic acid. Both acids were placed into an Agar-filled dish and‚ over increments of 15 minutes‚ data collection was taken based off the diffusion rate and the
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preparation of aspirin and oil of wintergreen | Introduction Organic compounds are those which contain carbon as well as a select other elements. An organic acid however‚ is an organic compound which contains acidic properties. An ester is an example of being a derivative of these organic acids. Esters can be prepared by the reaction of carboxylic acids and alcohols‚ with an inorganic acid used as a catalyst which is dubbed esterification. With o-hydrobenzoic acid‚ or salicylic
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The Northern Hemisphere’s southernmost permafrost‚ at Erdenetsogt sum‚ Mongolia‚ 46°17′ N. The world’s shortest distance between non-frozen desert and permafrost: 770 km (480 mi). The Eurasian pole of inaccessibility. Major rivers of the region include the Amu Darya‚ the Syr Darya‚ Irtysh‚ the Hari River
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Vice Chancellor of Aligarh Muslim University. Who was one of the pillar of Aligarh Movement . Besides this he was also renowned Parliamentarian‚ educationist and scholar. Later on he become the only Rector of Aligarh Muslim University in 1946 by AMU Executive Council after he resigned as VC. He was also selected in Indian Civil service as Deputy Collector along with Inayat Ullah sb ( father of former President HidayatUllah) however ‚ when Sir Ziauddin was asked by emotional Sir Syed that he
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